Ten years after Werth Messtechnik GmbH introduced the first X-ray tomography machine designed specifically for coordinate measurement technology, it's hard to imagine what quality assurance could do without this technology. The complete, non-destructive measurement of parts, including internal features, opens up completely new applications in both the inspection and dimensional control of parts. Due to continuous developments in many fields, Werth is a leader in this technology, particularly when precise measurement is required.
At Control 2005 in Sinsheim, the Werth Tomoscope 200 was presented. It was the first coordinate measuring device to use tomography, and was already multi-sensor. For the first time, complex parts with several hundred dimensions were measured completely and accurately in a short space of time. With numerous patented processes, such as Werth's automatic correction, measurement uncertainties of just a few microns are already assured. Modern artefact correction methods and the use of reference measurements, made with the WFP fiber probe, mean that diesel injection nozzles, for example, can be measured with a measurement uncertainty of the order of 0.5 µm.
Today, basic components such as the X-ray tube, detector and rotation axis can be selected for the Werth TomoScope and TomoCheck series, enabling the machine to be perfectly adapted to the constraints of the customer's parts (volume, material, etc.). Machines are available to meet the most demanding requirements in terms of resolution and measurement uncertainty. All machines have a maximum tolerated error (MPE E - bidirectional according to VDI 2617-13) and are DAKKS-calibrated by the Werth laboratory. Thanks to the use of high-precision components, the TomoCheck offers a MPE E of (2.5 + L / 150) µm.
Future developments will focus on further reducing measurement uncertainties, and improving measurement capabilities on multi-material and assembled components.
Learn more: www.werthfrance.com